A fanlisting is simply an online list of fans of a subject, such as a TV show, actor, or musician, that is created by an individual and open for fans from around the world to join. There are no costs, and the only requirements to join a fanlisting are your name and country. Fanlistings do not have to be large sites (although some are), they are just a place where you can sign up with other fans.
(Taken from TFL)

Sonic first met Amy in Sonic CD (1993) by rescuing her from Metal Sonic and Dr. Robotnik. Sonic and Amy are good friends. She has been more active since Sonic Adventure (1999) having her first very own role in the story. Amy Rose sees herself as Sonic's girlfriend but so far it doesn't seem that way to Sonic. Amy always chases after him,wherever he goes.